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Finding the Fourth Proportional to 367,659.40, 551,489.10 and 329,605.60

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Solution

The fourth proportional to 367,659.40, 551,489.10 and 329,605.60 is: 494,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,659.40 : 551,489.10 = 329,605.60 : x
  2. Step 2: Convert to fraction form
    367,659.40/551,489.10 = 329,605.60/x
  3. Step 3: Cross multiply
    367,659.40x = 551,489.10 × 329,605.60
  4. Step 4: Simplify right side
    367,659.40x = 181,773,895,698.96
  5. Step 5: Solve for x
    x = 181,773,895,698.96/367,659.40
  6. Step 6: Final answer
    x = 494,408.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.